• Title/Summary/Keyword: 자초

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Influence of Nitrogen Application and Shading on the Sterile-type Cold Injury in Rice (질소시비와 차광이 벼 장해형냉해에 미치는 영향)

  • Kim, Hee-Dong;Tetsuo, Satake;Kim, Young-Ho;Kim, Byeong-Hyeon;Ree, Dong-Woo
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.34 no.3
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    • pp.252-260
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    • 1989
  • This experiment was carried out to clarify the causes of sterility in terms of pollination characteristics for the sterile-type cold damage as influenced by amount of nitrogen application and shading conditions in rice plants. The results obtained are as follows: The number of young microspore per anther was not changed greatly by amount of nitrogen application. The number of ripened pollen grains per anther decreased according to increase in nitrogen application and shading degree, but the anther length and stigma length were not significantly affected by those factors. The number of pollen grains on stigma decreased by intense shading. The fertility decreased with increased nitrogen application and intensified shading. The elongation of auricle distance per day was less in less nitrogen application and intense shading. The internode length of the first and the second from the top were shortened with intense shading, but that of the fourth was elongated. The number of spikelet per panicle decreased with increase in shading intensity.

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Studies of Physiological Action of Chemicals to Increase in Ripening of Rice Plant. I. Effect of Growth Regulators on Ripening of Rice Plant (수도등숙 향상을 위한 생리생태 연구 제 1 보 생장조절제 처리가 수도등숙에 미치는 영향)

  • Seo, G.S.;Lee, J.Y.;Kim, S.Y.;Ota,Yasuo
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.28 no.2
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    • pp.184-188
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    • 1983
  • This experiments were carried out to know the effect of ripened grain under low temperature ($20^{\circ}C/13^{\circ}C$) and out door condition when 2 chemicals including. Dachigaren were applied at 7-8 days before heading and heading stage. Low temperature plot is more effective than out door temperature plot to chemicals. Secondary tillers is more effective than primary tillers to chemicals. SZ8028+ABA is the most effective chemical than Dachigaren and SZ8028. SZ8028+ABA is the most effective chemical regardless of low or high temperature to ripeness. Iri 327 is higher than Jinheung.. The plot of SZ8028+ABA or Dachigaren applied is higher than SZ8028 or control at 0-20% of sterile. Percentage of hulled rice above 2.0mm was increased 87.6% of Dachigaren, 88.7% of SZ8028 90.2% of SZ8028+ABA compared with 83.4% of control.

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The Effect of Lithospermum erythrorhizon Extracts in UVB-Irradiated Mouse Skin (자초(Lithospermum erythrorhizon) 추출물이 UVB로 조사된 생쥐 피부에 미치는 영향)

  • Song, Seon-Young
    • Applied Microscopy
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    • v.38 no.3
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    • pp.195-204
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    • 2008
  • This study was intended to identify the effectiveness of Lithospermum erythrorhizon in the UVB-irradiated mouse skin. The C57BL mice were divided into three groups; the control group, the UVB irradiated group(UVB group), and the group treated with Lithospermum erythrorhizon extracts after UVB irradiation(UVB+Le group). 10 mouses were collected and sacrificed at 24 hrs, 48 hrs, 72 hrs, 120 hrs, and 168 hrs, respectively. In the result, the transepidermal water loss (TEWL) was decreased the UVB+Le group than UVB groups by time. At the 168 hrs group was significantly lower(p<0.05). In the result, the melanin value was decreased in the UVB+Le group than UVB group, but meaningless(p>0.05). In the result of erythema index, the UVB+Le group was meaningfully lower at 24 hrs, 48 hrs, and 72 hrs group than UVB group(p<0.05). In the result of scanning electron micrograph observation, the UVB+Le group was allevited swelling than UVB group at the 24 hrs, formation of the scab at the 48 hrs, regular plate shap at the 72 hrs, new keratin observated at the 120 hrs partially, and fine fiber covered epidermis surface at the 168 hrs. In the result of transmission electron micrograph observation, the UVB+Le group was facilitation of increased lamellar bodies and reformation lamellar bodies than UVB group at the all groups. Almost all the structures were recovered at the 160 hrs group. In conclusion, Lithospermum erythrorhizon extracts may recovery on the UVB-irradiated mouse skin.

Visual Color Deterioration of the Extract of Lithospermi radix (자초(紫草)추출물의 외관상 변색)

  • Yoon, H.N.;Kim, H.;Shin, Y.D.;Yoo, M.Y.
    • Korean Journal of Food Science and Technology
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    • v.17 no.6
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    • pp.426-430
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    • 1985
  • The effects of temperature on the visual color deterioration of Lithospermi radix were investigated under steady conditions of various pH and temperature. The changes of Hunter L, a, b, and ${\Delta}E$ values related to the color deterioration were sharply increased above $50^{\circ}C$ and the deteriorations were expressed linear relationships with the temperature above $60^{\circ}C$. Linear regression coefficients of Hunter L, a, b values decreased with an increase of heat treatment time, whereas the color difference was increased. The linear regression coefficients of Hunter L, a, b, ${\Delta}E$ values in 66.7% ethanol extract solution of Lithospermi radix for 1 hr were -0.3696, -0.4124, -0.2279, and 0.5983, respectively. Inear regression coefficients in color difference (${\Delta}E$) could be calculated from the coefficients in Hunter L, a, b values. The low pH treatment of extract from pH 6.07 to pH 1.35 led to decrease of Hunter a value and a little increase of Hunter L, b values, but the high pH treatment above pH 6.07 decreased all Hunter values. Particularly, the visual color of the extract of Lithospermiradix was appeared to be faborable at pH 4.0-6.5, which was a bright red color.

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Screening of Antimicrobial Activity for Medicinal Herb Extracts (한약재 추출물의 항균효과 검색)

  • Park, Uk-Yeon;Chang, Dong-Suck;Cho, Hak-Rae
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.21 no.1
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    • pp.91-96
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    • 1992
  • Twenty kinds of medicinal herbs were extracted by water and 95% ethanol and then antimicrobial activity of the extracts was investigated against various kinds of microorganisms. Water extracts of Gardeniae fructus (Gardenia jasminoides), Lycii fructus (Lycium chinense) and Schizandrae fructus (Schizandra chinensis) showed inhibitory effects on the growth of most of the bacteria. In the case of ethanol extracts, the 3 kinds of the samples such as Gardeniae fructus, Schizandrae fructus and Lithospermi radix (Lithospermum erythrorhizon) showed inhibitory effects on the growth of almost all bacteria. In particular, ethanol extract from Phellodendri cortex (Phellodendron amurense) showed the best inhibitory effect on the growth of S. aureus in the concentration of 0.01%. By the way, inhibitory effects of water extracts from these medicinal herbs were not so good on the growth of fungi but those of ethanol extracts were better and ethanol extracts of Phellodendri cortex showed best. Antimicrobial activity was variable according to the used extracting solvent. For example, inhibitory effets of ethanol ext-racts were $2{\sim}100$ times better than those of water extracts. Ethanol extract of Lithospermi radix was the most effective not only bactericidal effects but also sensory evaluation tests for tastes.

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간경변

  • 김경희
    • 간의등불
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    • s.8
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    • pp.14-19
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    • 1999
  • 지난호에 간경변에 대한 장문(長文)의 글을 썼습니다만 이번에도 이 테마를 택하게 된 것은 우리나라 간장질환 중 간경변이 차지하는 비중이 너무나 급속하게 커지고 있기 때문입니다. 현 시점에서 이 질환에 특효약은 없지만 철저한 생활관리만 계속한다면 천수를 다할 수 있을 것입니다. 하지만 아주 확실하고 간단한 이 이치를 환자들이 터득하지 못하고 있기 때문에 불행을 자초한다는 사실을 다시 한 번 강조하고 싶습니다. 따라서 우선 생활의 방식을 알아야겠습니다. 그

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특별기고-한자교육 주장, 그 의로운 길을 걸으며

  • Min, Gwan-Sik
    • 프린팅코리아
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    • s.7
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    • pp.82-84
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    • 2003
  • "정부는 동남아의 허브국가로 중국과 일본을 잇고, 러시아라는 가장 큰 대륙국가와 아시아를 잇는 가교로서 또 태평양연안국의 요충지로서 우리나라를국제 경쟁력을 갖춘 물류정보국가로 내세우려 하고 있다. 그러나 진정한 물류와 정보는 다양한 언어를 조화할 수 있는 능력이 있어야 한다. 적어도 중국과 일본의 언어를 조화할 수 있는 공용어인 한자를 보유한 우리나라가 애써 그것을 외면한다면 가히 어리석음을 자초한 안타까운 일이 아닐 수 없다."

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Natural Dyeing of Ramie Fabrics with Acer Ginnala, Alnus Japonica and Gromwell Extracts (신나무, 오리나무 및 자초를 이용한 라미직물의 천연염색)

  • Kim, Sangyool
    • Journal of Fashion Business
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    • v.18 no.4
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    • pp.15-27
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    • 2014
  • A natural colorant was extracted from Acer ginnala, Alnus japonica and gromwell as extractants. Studies have been made on the effects of the kind of extracts and dyeing/mordanting conditions on colorimetric changes of ramie fabrics. The color of fabrics tended to become darker as the numbers of dyeing process and mordanting process increased using three kinds of extracts. As the numbers of dyeing and mordanting increased, the ramie fabrics gradually increased to show reddish and bluish signs using Acer ginnala, Alnus japonica, and gromwell extracts(500ml and 1,000ml). In the case of 1,500ml of gromwell extracts, the ramie fabrics showed the color with more redness and yellowness. Color difference (${\Delta}E$) of dyed and mordanted fabrics increased as the numbers of dyeing and mordanting processes increased. The apparent colors of ramie fabrics using Acer ginnala were Y and GY. The Alnus japonica extracts produced Y and GY colors on ramie fabrics. With varying amount of gromwell extracts, the colors of dyed and mordanted fabrics were R, YR, GY, G, PB, P and RP, however, the main color was PB. It was concluded that the extracts of Acer ginnala, Alnus japonica and gromwell can be used as a natural dye producing black colors.

A Study Improvement of Adsorption of Gromwell (자초염료의 염색성 증진을 위한 방안(I))

  • 최인려;최정임
    • Journal of the Korea Fashion and Costume Design Association
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    • v.3 no.2
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    • pp.35-50
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    • 2001
  • The object of this study is to improve the adsorption of dye for gromwell. Dye was from gromwell first soaked in methylol and added the distilled water, using same amount of methylol. The fabrics used for the experiments were cotton, silk and acrylics(KS0905). These were used untreated and pretreated with chitosan, premordanted with Cu, Al and Fe. Dyeing conditions were controlled. 1. Deep color effect was shown silk. 2. Chitosan treated cotton and acrylics showed deep color effect and huge color difference before and after the experiment. 3. In chitosan treated acrylics, deep color effect were shown. It proved the good adsorption of gromwel under metal mordanting. 4. Cu showed high adsorption of gromwell and deep color effect. 5. Chitosan treated acrylics can be substitute for wool.

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